Electric signal device.



H. A. PARRISH. ELECTRIC SIGNAL DEVICE. APPLICATION FILED FEB. 23,1911.1,046,634, Patented Dec. 10,1912.

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H. A. PARRISH ELECTRIC SIGNAL DEVICE.

APPLICATION FILED mums, 1911'.

Patented Dec. 10, 1912.

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brace the trip bar 14 a trip without eflect, except in It will thus beseen that when the trolley wheel passes in one direction, it willemalong the incline thereof and swing the same to one side and close thec1rcuit,-see dotted lines on F ig. IV. When the trolley wheel passes inthe opposite direction, the side of the wheel strikes the side of thebar, as indicated by the wheel in dottedlines and the bar in full linesin Fig. IV, and swings the bar in the opposite direction and passes thethe structure of Fig. VIII. In the structure of Fig. VIII, the circuitis closed when the car passes in either direction. In one directionthegroove engages, in the opposite direction the side of the wheel, and oneswitch or the other is operated to close theQcircuit;

' that point, and as soon as the arm 15 consupplies the current wiringof this appear in trolley wheel in tacts wit-h the spring 10 the currentpasses and closes the circuit. The details for the Fig. VII where themain wire is lettered 3, the trolley wheel 19, the oblique switch bar 14the spring 10, and the circuit 21. It is clear that the passing mightoperate this device when approaching from either direction, and in Fig.VIII I show the structure so arranged that the car in passing will closethe circuit, no matter in which direction the trolley is moving. This ofcourse can be the structure that is placed at a crossing to clear thesignal when the train or car passes that point.

The structure in which the trolley Wheel and closes the circuit isdetailed in Fig. V, the spring switch 10 only being shown, which springis connected by suitable binding posts 11 to the circuit 21. I haveprovided contacts at both ends of the swinging trip-device, but suchcontacts would be quite effective if located at only one end of thedevice, but I find it is much better balanced and much more effectivewith the contact devices at both ends.

I have shown trolley wheels as the operat ing means and my structurethus specially adapted. The structure is capable of operation by anypassing object and I desire to, claim it broadly as well as in itsspecial relation.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In an automatic trip device for signals, the combination of atrolleywire and cross wires, 2. platform 2, brackets H for supand passgradually bar above and oblique to one end directly above the trolleywire, so that it will swing in proximity to the up-' per side of thesaidtrolley wire and above and out of contact with the same, adapted tobe embraced and acted uponby a grooved trolley wheel, spring switches 10and spring contacts 12 separated therefrom and adapted to be connectedinto signal circuits, said switches and contacts disposed on said plat-.form in position to be actuated by said lever hanger arms, and asuitable housing for the said switch means, coa'cfing substantialy asdescribed and for thepurpos pecifie 2. In an automatic trip device forsignals,

the combination of a trolley wire and cross wires, a platform 2,brackets 4-4 for supporting the same upon thetrolley wire, a supportingbrace 7 secured to the said platform and adapted to connect with thecross wires, ahorizontal bar above and ob the trolley wire, lever hangerarms 15 for suspending'the said oblique bar so that it will swinginclose proximity to the upper side of the said trolley wire and aboveandlique to out of contact with the .same, spring switches 10 and springcontacts 12 separated therefrom and adapted to be connected into signalcircuits, said switches and contacts disposed on said platform inposition to be actuated by said lever hanger arms, and a suitablehousing for the said switch means, coacting substantially as describedand for the purpose specified.

3. In an automatic switch device for signals, the combination of atrolley wire, a platform supported above the trolley wire and insulatedtherefrom, a horizontal trip the trolley wire, lever hanger armssuspending the said oblique trip bar, with one end directly above thetrolley wire, so that it will swing in proximity to the said trolleywire, and above and out of contact with the same, adapted to be embracedand acted upon by a grooved trolley wheel, spring switch means carriedby the said ated by the hanger arms, and a suitable housing for thesame, coacting as specified. 4. In an automatic switch device for signals, the combination y platform supported above the trolley wire andinsulated therefrom, a horizontal trip bar above and oblique to thetrolley wire, lever hanger arms for susperrding the said oblique tripbar so that it will swing in proximity to the said trolley wire, andabove and out of contact with the same, spring switch means carried bythe said platform platform disposed to be oper-,

of a trolley wire, a

disposed to be operated. by the hanger arms, and a suitable housing forthe same, coacting as specified.

5. In an automatic switch device for signals, the combination of atrolley wire, a suitable support, a horizontal trip bar in proximity andoblique to the trolley wire, lever bangers therefor, switch meansoperated by the said trip bar and its connections, the said trip barbeing disposed. with one end directly above the trolley wire, to beembraced and acted upon by the groove of the trolley wheel, coasting asspecified.

6. In an automatic switch device for signals, the combination of atrolley wire,-a suitable ,support, a horizontal trip bar in proximityand oblique to the trolley wire, lever hangers therefor, switch meansoperated by the said trip bar and its connections, the said trip barbeing disposed to be embraced and acted upon by the groove of thetrolley wheel, coacting as specified.

7. In an automatic switch device, the combination of a trolley wire, asuitable support, a horizontal trip bar with end hanger arms pivoted tothe said support, the bar being above and out of contact and oblique tothe trolley wire, with one end directly above the trolley wire andadapted to be embraced and acted upon by a grooved trolley wheel, aswitch means, and connections from said hanger arms to said switchmeans, as specified.

8. in an automatic switcn device, the combination of a trolley wire, asuitable support, ahorizontal trip bar with end hanger arms pivoted, tothe said support, the bar being above. and out of contact and oblique tothe. trolley wire and adapted to be embraced and acted upon by thegrooved trolley wheel, a switch means, and connections from said hangerarms to said switch means, as specified. i

9.111 an automatic switch device, the combination of a trolley wire, asuitable support, a horizontal trip bar with end hanger arms pivoted tothe said support,

the bar being disposed above and out of contact and oblique to thetrolley wire and adapted to be embraced and acted upon by the oovedtrolley wheel, a spring switch acted upon by said trip bar andconnections and a blade spring contact for said switch, coacting asspecified.

10, In an automatic switch device, the combination of a trolley wire, asuitable support, a horizontal trip bar with end hanger arms suspendedfrom said support, said bar being out of contact with and in proximityand oblique to the trolley wire, and adapted to be acted upon by thetrolley wheel, a switch means, and connections from said hanger arms tosaid switch, as specified, In witness whereof, I, have hereunto set myhand and seal in ,the presence of two witnesses.

HOMER A. PARRESH. [Ls] Witnesses:

MARGARET Gnssoow, LUEILLA G. GBEENFIELD.

fiepies this patent may be obtained for five cents each, by addressingthe flcmmtssioner of lsfeuts,

Washington, 33. G.

